import java.util.Timer;
import java.util.TimerTask;

public class Demo23 {
	public static void main(String[] args) {
		Timer timer = new Timer();
		timer.schedule(new TimerTask() {
			@Override
			public void run() {
				System.out.println("hello timer!");
				
			}
		},3000);
		
		
		System.out.println("main");
	}
}
